Vulnerabilities > CVE-2021-23983 - Out-of-bounds Write vulnerability in Mozilla Firefox

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
mozilla
CWE-787

Summary

By causing a transition on a parent node by removing a CSS rule, an invalid property for a marker could have been applied, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 87.

Vulnerable Configurations

Part Description Count
Application
Mozilla
703

Common Weakness Enumeration (CWE)